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Solder Alloy 704 vs. EN 1.6957 Steel

Solder alloy 704 belongs to the otherwise unclassified metals classification, while EN 1.6957 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is solder alloy 704 and the bottom bar is EN 1.6957 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 14
280
Elastic (Young's, Tensile) Modulus, GPa 51
190
Elongation at Break, % 30
18
Poisson's Ratio 0.36
0.29
Shear Modulus, GPa 19
73
Tensile Strength: Ultimate (UTS), MPa 55
930

Thermal Properties

Latent Heat of Fusion, J/g 62
250
Melting Completion (Liquidus), °C 240
1460
Melting Onset (Solidus), °C 220
1420
Specific Heat Capacity, J/kg-K 220
470
Thermal Conductivity, W/m-K 50
47
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
7.9
Electrical Conductivity: Equal Weight (Specific), % IACS 15
9.1

Otherwise Unclassified Properties

Density, g/cm3 7.5
7.9
Embodied Carbon, kg CO2/kg material 19
2.1
Embodied Energy, MJ/kg 320
29

Common Calculations

Stiffness to Weight: Axial, points 3.8
13
Stiffness to Weight: Bending, points 17
24
Strength to Weight: Axial, points 2.1
33
Strength to Weight: Bending, points 4.3
27
Thermal Diffusivity, mm2/s 30
13
Thermal Shock Resistance, points 3.5
27

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.1
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.1
0
Cadmium (Cd), % 0 to 0.0020
0
Carbon (C), % 0
0.22 to 0.32
Chromium (Cr), % 0
1.2 to 1.8
Copper (Cu), % 0 to 0.050
0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
92.7 to 94.7
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0.15 to 0.4
Molybdenum (Mo), % 0
0.25 to 0.45
Nickel (Ni), % 0 to 0.010
3.4 to 4.0
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0
0 to 0.15
Silver (Ag), % 4.8 to 5.2
0
Sulfur (S), % 0
0 to 0.0070
Tin (Sn), % 94.3 to 95.2
0
Vanadium (V), % 0
0.050 to 0.15
Zinc (Zn), % 0 to 0.0010
0